Home / 43,421.04-65,130.48-12,255.84

Finding the Fourth Proportional to 43,421.04, 65,130.48 and 12,255.84

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Solution

The fourth proportional to 43,421.04, 65,130.48 and 12,255.84 is: 18,383.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.04 : 65,130.48 = 12,255.84 : x
  2. Step 2: Convert to fraction form
    43,421.04/65,130.48 = 12,255.84/x
  3. Step 3: Cross multiply
    43,421.04x = 65,130.48 × 12,255.84
  4. Step 4: Simplify right side
    43,421.04x = 798,228,742.00
  5. Step 5: Solve for x
    x = 798,228,742.00/43,421.04
  6. Step 6: Final answer
    x = 18,383.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.